JPS61238502A - Tread used for recap - Google Patents
Tread used for recapInfo
- Publication number
- JPS61238502A JPS61238502A JP60079925A JP7992585A JPS61238502A JP S61238502 A JPS61238502 A JP S61238502A JP 60079925 A JP60079925 A JP 60079925A JP 7992585 A JP7992585 A JP 7992585A JP S61238502 A JPS61238502 A JP S61238502A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- tread
- subgroove
- sub
- buffing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
- B60C11/042—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag further characterised by the groove cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0306—Patterns comprising block rows or discontinuous ribs
- B60C11/0309—Patterns comprising block rows or discontinuous ribs further characterised by the groove cross-section
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は更生タイヤに用いるトレッド、例えば、更生タ
イヤの製造の際に用いるトレッド、特に、プレキュア−
トレッドを用いて更生する場合の更生タイヤに用いるト
レッドに関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a tread used in a retreaded tire, for example, a tread used in the manufacture of a retreaded tire, particularly a pre-cured tread.
The present invention relates to a tread used in a retreaded tire when the tread is used for retreading.
（従来の技術）
従来の更生タイヤに用いるトレッドとしては、例えば第
４図に示すようなものがある。第４図において、３１は
プレキュア−１〜レツドであり、プレキュア−トレッド
３１はトレッド基部３２とトレッド頭部３３（厚さＤ３
３は１５ ｍｍ ）とから構成されている。(Prior Art) Examples of treads used in conventional retreaded tires include those shown in FIG. 4. In FIG. 4, numeral 31 indicates precure-1 to red, and the precure tread 31 has a tread base 32 and a tread head 33 (thickness D3).
3 is 15 mm).
従来のプレキュア−トレッド３１はトレッド基部３２の
厚さＤ３゜（この場合Ｄ３□は４．５龍）が大きく、一
般に４ｍｍ以上のものが用いられる。The conventional precure tread 31 has a tread base 32 with a large thickness D3° (in this case, D3□ is 4.5 mm), and is generally 4 mm or more.
（発明が解決しようとする問題点）
したがって、プレキュア−トレツド３】の全体の重量が
増大して価格が高くなり、かつ、更生タイヤの性能も発
熱が大きく、耐久性も短いという問題点がある。(Problems to be Solved by the Invention) Therefore, the overall weight of the Precure Toledo 3 increases, making it more expensive, and the performance of the retreaded tire is also problematic in that it generates a lot of heat and has short durability. .
これを改良するためにトレッド基部３２の厚さを薄くす
ることが行われている。In order to improve this problem, attempts have been made to reduce the thickness of the tread base 32.
以下、構成が同じであり、前述の第４図を用いて説明す
る。第４図において、プレキュア−トレツド３１のトレ
ッド基部３２の厚さＤ３□（例えばＤ３□が２．５ｍｉ
＋）が薄い場合、バフした台タイヤへの接着をよくする
ため、トレツド基部３２の接着面３２ａが自動グライン
ダ（ヘルドサングー）３４でバフされる。ここに、バフ
とはゴムの表面をグラインダーで一部削り取ることをい
う。しかしながら、トレツド基部３２の厚さＤ３□が薄
いため、トレッド溝３５（溝巾Ｗ３．は１１ ＊＊＊
）の溝底の近傍３６の剛性が不足し、自動グラインダ３
４では接着面３２ａの十分なバフ作業ができず、手動グ
ラインダにより再バフ作業が必要になり、生産性が悪く
なるという問題点がある。Hereinafter, the configuration is the same, and will be explained using FIG. 4 described above. In FIG. 4, the thickness D3□ of the tread base 32 of the pre-cure tread 31 (for example, D3□ is 2.5 mm).
+) is thin, the adhesive surface 32a of the tread base 32 is buffed with an automatic grinder (held sungoo) 34 to improve adhesion to the buffed base tire. Here, buffing refers to removing a portion of the rubber surface with a grinder. However, since the thickness D3□ of the tread base 32 is small, the tread groove 35 (groove width W3. is 11 ***
) is insufficient in rigidity near the groove bottom 36, and the automatic grinder 3
4, the bonding surface 32a cannot be sufficiently buffed, and re-buffing is required using a manual grinder, resulting in poor productivity.
そこで、本発明は、更生タイヤに用いるトレッドのトレ
ッド基部の厚さが薄い場合にも、自動グラインダによっ
て十分なハフ作業ができ、再バフ作業も必要でなく、ハ
フ作業の生産性の良い更生タイヤに用いるトレッドを提
供することを目的とする。Therefore, the present invention provides a retreaded tire that can perform sufficient huffing work using an automatic grinder even when the tread base of the tread used for the retreaded tire is thin, does not require re-buffing work, and has high productivity in huffing work. The purpose is to provide treads for use in
また、走行中の発熱も少なく、耐久性も優れ、さらにト
レッド重量が軽く、価格も安いトレッドを提供すること
を目的とする。Furthermore, the objective is to provide a tread that generates less heat during running, has excellent durability, has a light tread weight, and is inexpensive.
（問題点を解決するための手段）
本発明に係る更生タイヤに用いるトレッドは、更生する
タイヤのトレッド部をハフした後、バフした台タイヤに
張付けられるトレッドにおいて、トレッドが複数の主溝
と主溝の溝底に形成された副溝とからなり、副溝の溝巾
より小さな副溝底と、主溝の側壁に形成された切込みと
を有することを特徴としている。(Means for Solving the Problems) The tread used in the retreaded tire according to the present invention is a tread that is applied to a buffed base tire after the tread portion of the tire to be retreaded is huffed. It consists of a sub-groove formed at the bottom of the groove, and is characterized by having a sub-groove bottom smaller than the groove width of the sub-groove, and a notch formed on the side wall of the main groove.
ここに、主溝は通常、Ｕ字状または、Ｖ字状の断面形状
をしており、トレッドの長手方向（断面方向を含む）に
ジグザグ状に形成されている。Here, the main groove usually has a U-shaped or V-shaped cross-sectional shape, and is formed in a zigzag shape in the longitudinal direction (including the cross-sectional direction) of the tread.
また、副溝は主溝の溝底に形成され、副溝の溝巾は主溝
の溝巾の１０〜３０％が好ましい。Ｕ字状の主溝の場合
には副溝は主溝の溝底に溝巾で段差を形成して突起状に
形成されるが、Ｖ字状の主溝の場合には副溝は主溝の側
壁を延長して形成される。Further, the sub-groove is formed at the bottom of the main groove, and the width of the sub-groove is preferably 10 to 30% of the width of the main groove. In the case of a U-shaped main groove, the sub-groove is formed into a protrusion by forming a step with the groove width at the bottom of the main groove, but in the case of a V-shaped main groove, the sub-groove is formed at the bottom of the main groove. It is formed by extending the side wall of.
本発明においては、溝巾とは溝の軸線に直交する面内で
溝の頂端間の距離をいう。In the present invention, the groove width refers to the distance between the top ends of the grooves in a plane perpendicular to the axis of the grooves.
また、副溝底はほぼ断面Ｖ字形の鋭角を形成するのが好
ましい。また、副溝底は副溝の溝巾より小さいが、これ
は、副溝底の溝ｌ】方向の断面が、いわゆる小さい半径
Ｒの円弧を形成することを意味し、半径Ｒは１龍以下が
好ましい。これらは、溝底の近傍のトレッドの厚さが薄
い場合でもＩ・レッドを自動グラインダによってハフす
る際、主溝の溝底の近傍の剛性の低下を小さくして、接
着面のバフ作業が十分行われ、再ハフ作業を必要としな
いためである。Further, it is preferable that the sub-groove bottom forms an acute angle with a substantially V-shaped cross section. In addition, the sub-groove bottom is smaller than the groove width of the sub-groove, which means that the cross section of the sub-groove bottom in the groove l] direction forms an arc with a small radius R, and the radius R is less than 1 dragon. is preferred. Even when the tread thickness near the groove bottom is thin, when I/Red is huffed using an automatic grinder, the decrease in rigidity near the groove bottom of the main groove is minimized, and the buffing work on the adhesive surface is sufficient. This is because re-huffing is not required.
また、切込みが主溝の側壁に主溝の軸線に沿って両側壁
に形成されるのは、タイヤが走行中に、副溝の溝底に発
生ずる亀裂（いわゆるグループクラック）を防止するた
めである。走行中に主溝の表面の踏面には溝巾を大きく
変化させる繰返し変形歪み、いわゆるワイピング現象ま
たは横力が起こるが、この切込みによって変形歪めは大
巾に緩和される。このため、副溝の溝底の小さな円弧部
分に亀裂を発生するの防止する。Also, the reason why cuts are formed on both side walls of the main groove along the axis of the main groove is to prevent cracks (so-called group cracks) from forming at the bottom of the sub-groove while the tire is running. be. During running, repeated deformation strain that greatly changes the groove width, so-called wiping phenomenon, or lateral force occurs on the tread surface of the main groove, but the deformation strain is greatly alleviated by this cut. This prevents cracks from forming in the small circular arc portion of the bottom of the sub-groove.
また、切込みの位置は主溝の頂端から主溝の深さの２０
〜７０％が好ましい。切込みの断面形状は切込みの先端
で１．５龍以上の半径の丸味を有することが好ましい。Also, the position of the cut is 20 mm from the top of the main groove to the depth of the main groove.
~70% is preferred. The cross-sectional shape of the cut preferably has a roundness with a radius of 1.5 or more at the tip of the cut.
（作用）
更生タイヤに張付げられるトレツドがトレッドの接着面
を自動グラインダーでバフされる際、トレツドの主溝の
形状がＵ字形のときも、７字形のときにも、主溝の溝底
には副溝が形成され、その副溝の副溝底が副溝の溝巾よ
り小さく、半径１１１以下の丸味で形成されているので
、トレッドの溝底の近傍の剛性が大きく、自動グライン
ダのみでバフ作業は十分に実施され、したがって手動グ
ラインダによる再バフ作業が必要なく、バフ作業の生産
性がよい。(Function) When the adhesive surface of the tread on a retreaded tire is buffed with an automatic grinder, the groove bottom of the main groove is A sub-groove is formed in the tread, and the sub-groove bottom of the sub-groove is smaller than the groove width of the sub-groove and is rounded with a radius of 111 or less, so the rigidity near the groove bottom of the tread is large, and only automatic grinders can handle it. The buffing work is carried out satisfactorily, so there is no need for re-buffing with a manual grinder, and the productivity of the buffing work is good.
また、前述の本発明のトレッドを用いた更生タイヤが、
走行中に主溝の溝巾を繰返し変形する変形歪みを生ずる
ワイピング現象または横力が起こっても、主溝の側壁に
は切込みがもちけられており、この切込みにより繰返し
変形歪みは大巾に緩和され、副溝底の亀裂は発生しない
。Further, a retreaded tire using the tread of the present invention described above,
Even if a wiping phenomenon or lateral force that causes deformation strain that repeatedly deforms the groove width of the main groove occurs during running, the side wall of the main groove has a notch, and this notch greatly reduces the repeated deformation strain. It is relaxed and no cracks occur at the bottom of the sub-groove.
以下、本発明に係る更生タイヤに用いるトレッドの実施
例を図面に基づいて説明する。Examples of treads used in retreaded tires according to the present invention will be described below with reference to the drawings.
（実施例）
第１図乃至第３図は本発明に係る更生タイヤに用いるト
レツドを説明する図であり、第１図は第１実施例のトレ
ッドの溝の断面形状を示す要部拡大断面図である。(Example) Figures 1 to 3 are diagrams for explaining a tread used in a retreaded tire according to the present invention, and Figure 1 is an enlarged cross-sectional view of essential parts showing the cross-sectional shape of the tread groove of the first example. It is.
第１図および第２図においそ、１は更生タイヤに用いる
トレッド（この実施例ではプレキュア−トレッドにつき
示す）であり、プレキュア−トレッド１は第２図に示す
ように、更生するタイヤ２のトレッド部３（点線で示さ
れている）をグラインダ（図に示されていない）によっ
てバフして取り除いた後、バフした台タイヤ２ａのバフ
面４に張付けられる。1 and 2, reference numeral 1 indicates a tread used for a retreaded tire (in this example, a precure tread is shown), and the precure tread 1 is a tread of a tire 2 to be retreaded, as shown in FIG. After the portion 3 (indicated by dotted lines) is removed by buffing with a grinder (not shown), it is applied to the buffed surface 4 of the buffed base tire 2a.
第１図において、更生タイヤに用いるプレキュア−トレ
ッド１は所定の長さを有し所定の金型において、予め加
硫される。プレキュア−１−レッド１は下部のトレッド
基部６と上部のトレッド頭部７とからなり、１〜レッド
頭部７にはプレキュア−トレツド１の長さ方向ムこ複数
のＵ字形の主溝８が設けられている。主溝８の溝底８ａ
には副ａ９が形成され、副溝９の溝＋１１Ｗ、（この実
施例では１．５ｍｍ）は主溝８の溝ｒｌｌＷａ （す
なわち、溝の頂端８Ｃ間の距離、この実施例では８璽１
）より小さい。副溝９の副溝底９ａの溝中方向の断面は
、先端の半径Ｒが副溝９の溝巾Ｗ、より小さい（この実
施例ではＲは０．８Ｂ）。In FIG. 1, a pre-cured tread 1 used for a retreaded tire has a predetermined length and is vulcanized in advance in a predetermined mold. PreCure-1-Red 1 consists of a lower tread base 6 and an upper tread head 7, and each of PreCure-1-Red 1 to Red head 7 has a plurality of U-shaped main grooves 8 along the length of PreCure-Tread 1. It is provided. Groove bottom 8a of main groove 8
A sub-a9 is formed in the sub-groove 9, and the groove +11W of the sub-groove 9 (1.5 mm in this embodiment) is the groove rllWa of the main groove 8 (i.e., the distance between the top ends 8C of the grooves, in this embodiment 8x1).
) is smaller than. In the cross section of the sub-groove bottom 9a of the sub-groove 9 in the groove direction, the radius R of the tip is smaller than the groove width W of the sub-groove 9 (in this embodiment, R is 0.8B).
ここに、トレッド１の厚さり、は１７．５ｍｍ、 ト
レッド基部６の厚さＤ６は２．５ｍｍであり、従来のト
レッドのトレッド基部３２の厚さＤ３゜（４，５龍）に
比較して薄い。また、トレッド頭部７の厚さり、は１５
Ｈ１主溝８の深さＤ８は１３．５ｍ、副溝９の深さり、
は１．５１■である。Here, the thickness of the tread 1 is 17.5 mm, and the thickness D6 of the tread base 6 is 2.5 mm, compared to the thickness D3° (4.5 mm) of the tread base 32 of a conventional tread. thin. Also, the thickness of the tread head 7 is 15
The depth D8 of the H1 main groove 8 is 13.5 m, the depth of the sub groove 9 is
is 1.51■.
１２は切込みであり、切込み１２は主溝８の側壁８ｂに
形成され、主溝８の頂端８ｃから距離ＫＩ２（この実施
例では７０）の位置に形成されている。The notch 12 is formed in the side wall 8b of the main groove 8 at a distance KI2 (70 in this embodiment) from the top end 8c of the main groove 8.
切込み１２の深さＤ１□は１．５ｍｍであり、切込み１
２の先端の形状の半径ｒは１．５ｍｍである。The depth D1□ of the cut 12 is 1.5 mm, and the depth D1□ of the cut 12 is 1.5 mm.
The radius r of the tip shape of No. 2 is 1.5 mm.
このような、トレッド基部６の厚さＤ６が薄いプレキュ
ア−トレッド１がその接着面１ａをグラインダによりバ
フする際、主溝８の溝底８ａに副溝９が設けられ、かつ
、副溝９の副溝底９ａば先端の半径Ｒが０．８ｍｍで１
璽１以下であるので溝底の近傍の剛性の低下が少なくし
たがって、バフ作業は十分に実施され、再バフ作業の必
要もなく更生タイヤの生産性が約２倍と大巾に向上でき
る。When such a pre-cured tread 1 with a thin tread base 6 has its adhesive surface 1a buffed by a grinder, a sub-groove 9 is provided in the groove bottom 8a of the main groove 8, and the sub-groove 9 is 1 when the radius R of the tip of the sub groove bottom 9a is 0.8 mm.
Since it is less than 1, the decrease in rigidity in the vicinity of the groove bottom is small, so the buffing work can be carried out sufficiently, and the productivity of retreaded tires can be greatly improved by about twice as much without the need for re-buffing work.
また、主溝８の側壁８ａには切込み１２が設けられてお
り、トレッドの表面に繰返しワイピング現象または横力
が起こっても、切込みによって大巾に変形歪みが緩和さ
れ、副溝９の副溝底９ａには亀裂の発生は起こらない。In addition, a notch 12 is provided in the side wall 8a of the main groove 8, and even if repeated wiping phenomenon or lateral force occurs on the surface of the tread, the deformation strain is largely alleviated by the notch, and the minor groove of the minor groove 9 No cracks occur in the bottom 9a.
第３図は本発明の第２実施例の溝の断面形状を示す要部
拡大断面図である。FIG. 3 is an enlarged cross-sectional view of a main part showing the cross-sectional shape of a groove according to a second embodiment of the present invention.
第３図において、第２実施例は主溝の断面形状が、第１
実施例においてはＵ字状であるのに対して、第２実施例
においては７字形であり、副溝が主溝の側壁を延長して
形成されていること以外は同じであるので、同じ符号を
つけて、構成、作用、効果の説明は省略する。In FIG. 3, in the second embodiment, the cross-sectional shape of the main groove is the same as that of the first embodiment.
While the embodiment has a U-shape, the second embodiment has a 7-shape and is the same except that the minor groove is formed by extending the side wall of the main groove, so the same reference numerals are used. , and the explanation of the structure, action, and effect will be omitted.
なお、前述の実施例においては、トレッドがプレキュア
−トレッドの場合について説明したが、本発明において
は、この実施例に限らず、通常の未加硫の更生用のトレ
ッドに用いて、加硫後に本発明と同じ構成を有する断面
の溝形状をなすようにしでもよい。In the above embodiment, the case where the tread is a pre-cured tread has been described, but the present invention is not limited to this embodiment. The cross section may have a groove shape having the same structure as the present invention.
また、前述の実施例においては、トレッドが更生タイヤ
に用いるプレキュア−トレツドの場合について説明した
が、本発明においては、新品タイヤのトレッドに用いて
もよい。Further, in the above-mentioned embodiments, the case where the tread is a pre-cured tread used for a retreaded tire is described, but in the present invention, the tread may be used for a tread of a new tire.
（発明の効果）
以上説明したように、本発明によれば、更生タイヤに用
いるトレッドのトレッド基部の厚さが薄い場合にも、自
動グラインダによって十分なバフ作業ができ、再バフ作
業も必要でなく、バフ作業の生産性の極めて優れた更生
タイヤに用いるトレッドを提供することができる。(Effects of the Invention) As explained above, according to the present invention, even when the tread base of a tread used for a retreaded tire is thin, sufficient buffing can be performed using an automatic grinder, and re-buffing is not necessary. Therefore, it is possible to provide a tread for use in a retreaded tire that has extremely high productivity in buffing work.
また、走行中に繰返し変形歪みを受けても溝底の亀裂の
発生もなく、また、トレッド基部が薄いので発熱も少な
く極めて耐久性に優れ、さらに、重量も軽く、価格も安
い更生タイヤのトレッドを提供できる。In addition, the tread of the retreaded tire does not cause cracks in the groove bottom even if subjected to repeated deformation strain while driving, and since the tread base is thin, it generates less heat and is extremely durable.Furthermore, the tread of the retreaded tire is light in weight and inexpensive. can be provided.
第１図〜第３図は本発明に係る更生タイヤに用いる！・
レッドを説明する図であり、第１図はその第１実施例の
要部拡大断面図、第２図はその説明をするための概略図
、第３図はその第２実施例の要部拡大断面図である。第
４図は従来の更生タイヤに用いるトレッドおよび製造方
法を示す概略斜視図である。
■・・・・・・プレキュアートレソ）”（トレン１′）
、２・・・・・・タイヤ、
２ａ・・・・・・台タイヤ、
３・・・・・・１ヘレソド部、
８・・・・・・主溝、
８ａ・・・・・・溝底、
８ｂ・・・・・・側壁、
９・・・・・・副溝、
９ｂ・・・・・・副溝底、
１２・・・・・・切込み、
Ｗ、・・・・・・副溝の溝巾。1 to 3 are used for the retreaded tire according to the present invention!・
FIG. 1 is an enlarged sectional view of the main part of the first embodiment, FIG. 2 is a schematic diagram for explaining the red, and FIG. 3 is an enlarged main part of the second embodiment. FIG. FIG. 4 is a schematic perspective view showing a tread used in a conventional retreaded tire and a manufacturing method. ■・・・Precure Toreso)” (Tren 1′)
, 2... Tire, 2a... Base tire, 3... 1 Heresodo part, 8... Main groove, 8a... Groove bottom , 8b...Side wall, 9...Minor groove, 9b...Minor groove bottom, 12...Notch, W,...Minor groove groove width.
Claims (1)
タイヤに張付けられるトレツドにおいて、トレツドが複
数の主溝と主溝の溝底に形成された副溝とからなり、副
溝の溝巾より小さな副溝底と、主溝の側壁に形成された
切込みとを有することを特徴とする更生タイヤに用いる
トレツド。After buffing the tread part of the tire to be retreaded, the tread is attached to the buffed base tire, and the tread consists of a plurality of main grooves and a sub-groove formed at the bottom of the main groove, and the width of the tread is smaller than the width of the sub-groove. A tread for use in a retreaded tire, characterized by having a sub-groove bottom and a notch formed in a side wall of a main groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60079925A JPS61238502A (en) | 1985-04-15 | 1985-04-15 | Tread used for recap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60079925A JPS61238502A (en) | 1985-04-15 | 1985-04-15 | Tread used for recap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61238502A true JPS61238502A (en) | 1986-10-23 |
Family
ID=13703881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60079925A Pending JPS61238502A (en) | 1985-04-15 | 1985-04-15 | Tread used for recap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61238502A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010001251A (en) * | 1999-06-03 | 2001-01-05 | 조충환 | Pneumatic tire having improved noise |
| JP2002067622A (en) * | 2000-08-28 | 2002-03-08 | Bridgestone Corp | Precure tread and reclaimed tire to which the precure tread attached |
| JP2002086588A (en) * | 2000-09-14 | 2002-03-26 | Bridgestone Corp | Method and apparatus for buffing vulcanized tread member |
| JP2013086744A (en) * | 2011-10-21 | 2013-05-13 | Bridgestone Corp | Vehicle tire and buffing method of the same |
| US20150298411A1 (en) * | 2012-10-31 | 2015-10-22 | Michelin Recherche Et Technique S.A. | Methods and apparatus for making retreaded tires |
-
1985
- 1985-04-15 JP JP60079925A patent/JPS61238502A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010001251A (en) * | 1999-06-03 | 2001-01-05 | 조충환 | Pneumatic tire having improved noise |
| JP2002067622A (en) * | 2000-08-28 | 2002-03-08 | Bridgestone Corp | Precure tread and reclaimed tire to which the precure tread attached |
| JP2002086588A (en) * | 2000-09-14 | 2002-03-26 | Bridgestone Corp | Method and apparatus for buffing vulcanized tread member |
| JP4565719B2 (en) * | 2000-09-14 | 2010-10-20 | 株式会社ブリヂストン | Method and apparatus for buffing vulcanized tread member |
| JP2013086744A (en) * | 2011-10-21 | 2013-05-13 | Bridgestone Corp | Vehicle tire and buffing method of the same |
| US20150298411A1 (en) * | 2012-10-31 | 2015-10-22 | Michelin Recherche Et Technique S.A. | Methods and apparatus for making retreaded tires |
| US10363715B2 (en) * | 2012-10-31 | 2019-07-30 | Compagnie Generale Des Etablissements Michelin | Methods and apparatus for making retreaded tires |
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